Add the stub related test cases.

Change-Id: I9f32ea4b0e26216cfc45a69f6a59f5bd247ab6e9

3 files changed, 75 insertions, 0 deletions

diff --git a/tests/stubs/arm-stub.c b/tests/stubs/arm-stub.c
new file mode 100644
index 0000000..2138f9a
--- /dev/null
+++ b/tests/stubs/arm-stub.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+
+// Note: The first instruction stands for ldr, which loads the data from
+// memory to the specified register.  Notice that due to the pipeline design,
+// when ldr is executed, the program will be advanced by 8.  So, to get our
+// address we should substract it by 4.
+
+uint32_t stub[] = {
+  0xe51ff004ul, // ldr pc, [pc, #-4]
+  0x00000000ul  // address
+};
+
+int test() {
+  printf("hello world!\n");
+  return 5;
+}
+
+int main() {
+  int (*f)() = (int (*)())stub;
+  stub[1] = (uint32_t)(uintptr_t)test;
+
+  printf("return = %d\n", f());
+  return EXIT_SUCCESS;
+}
diff --git a/tests/stubs/mips-stub.c b/tests/stubs/mips-stub.c
new file mode 100644
index 0000000..ff34d03
--- /dev/null
+++ b/tests/stubs/mips-stub.c
@@ -0,0 +1,48 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+// --------------
+// Register Usage
+// --------------
+// $0       zero
+// $1       at
+// $2-$3    function return value registers
+// $4-$7    function argument registers
+// $8-$15   temporary
+// $16-$23  saved register
+// $24-$25  temporary
+// $26-$27  os kernel
+// $28      global pointer
+// $29      stack pointer
+// $30      saved register
+// $31      return addres reigster
+
+// --------------------
+// Instruction Encoding
+// --------------------
+// lui: 0011 1100 000t tttt iiii iiii iiii iiii
+// ori: 0011 01ss ssst tttt iiii iiii iiii iiii
+// jr:  0000 00ss sss0 0000 0000 0000 0000 1000
+// nop:  0000 0000 0000 0000 0000 0000 0000 0000
+
+uint32_t stub[] = {
+  0x3c190000ul,
+  0x37390000ul,
+  0x03200008ul,
+  0x00000000ul
+};
+
+int test() {
+  printf("hello world!\n");
+  return 5;
+}
+
+int main() {
+  int (*f)() = (int (*)())stub;
+  stub[0] |= (((uint32_t)(uintptr_t)test) >> 16) & 0xffff;
+  stub[1] |= (((uint32_t)(uintptr_t)test)) & 0xffff;
+
+  printf("return = %d\n", f());
+  return EXIT_SUCCESS;
+}
diff --git a/tests/stub-test.cpp b/tests/stubs/stub-layout-test.cpp
index ba07cd2..ba07cd2 100644
--- a/tests/stub-test.cpp
+++ b/tests/stubs/stub-layout-test.cpp